Is the Passport the perfect device for people with big hands and fingers?

I have been looking out for a device for my father for a long time. The problem is gigantor has huge hands and huge fingers. None of the touch screen devices are suitable for him. I have tried all the available big screen phones like note and stuff but they all take advantage of the wider screen and shove more keys in a row. For the average user the setup is fine but for him it does not help. He ends up hitting more than one key at a time. The best I found was the q5. The space in between the keys helped a bit. But still is not perfect. If there is anyone who has a passport please do me a favor and measure the size of a individual key and tell me. Cause I realize that the phone has gone wider but the number of keys in the row are the same. This might actually be the best phone for people with huge fingers.